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25 lines
999 B
Markdown
25 lines
999 B
Markdown
6 years ago
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NickelBridge
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============
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NickelBridge is a simple utility that allows NickelBox to interface with receipt
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printers. It runs a simple web server listening on localhost:64269 (nibox) that
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accepts JSON-format receipts and attempts to print them to whatever device is
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configured in the UI.
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NickelBridge uses [`node-thermal-printer`](https://www.npmjs.com/package/node-thermal-printer)
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to print receipts. It therefore supports the Epson ESC/POS and STAR protocols.
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NickelBridge itself has only been tested with ESC/POS.
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Endpoints
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---------
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* GET `/status`: Returns JSON `{"status": "OK", "width" 48}` where the width is
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the user-configured maximum width in characters of a single printed line of text.
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* POST `/print`: Accepts a JSON body comprised of the output of a `json` format
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NickelBox receipt. Prints it, cuts the paper (if hardware allows), and responds
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with `{"status": "OK"}`.
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* POST `/opendrawer`: Instructs the receipt printer to pop open the cash drawer,
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if there is one attached.
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